Worcester Bosch
Worcester Bosch Wiring Harness Low Voltage 87186839830
Low voltage wiring harness for Worcester Bosch Greenstar Compact boilers, part 87186839830, carrying control and sensor signals within the appliance.
At a glance
- Part type: Wiring harness, low voltage
- Also known as 2246567
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
£76.42
£63.68 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Worcester Bosch 87186839830 is a low voltage wiring harness used inside Greenstar Compact gas boilers. It carries low voltage control and sensor signals between the appliance's electronic components, so the boiler's control board can read inputs and command the fan, gas valve and ignition sequence correctly. The harness is supplied as a complete assembly with its connectors already fitted.
Signs this part needs replacing
- Intermittent lockouts or fault codes that clear on their own, pointing to a broken signal path
- The boiler failing to ignite or running through a start sequence without completing it
- A blank or flickering display, or controls that respond erratically
- Visible damage to the harness: chafed or heat-hardened insulation, scorched sleeving, or exposed conductor
- Loose, corroded or pushed-back terminals at either end of the harness
Before you order
- Check the GC number and appliance serial plate to confirm the harness matches your boiler variant
- Compare the previous part numbers 8-718-686-581-0 and 87186865810 against the harness currently fitted
- Inspect the connectors and any seals disturbed during removal, and replace them if they show wear
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Mechanical
| Part type | Cables, Leads & Wiring Harnesses |
|---|---|
| Length | 0.1mm |
| Width | 0.1mm |
| Depth | 0.1mm |
Compliance
| Manufacturer part number (MPN) | 87186839830 |
|---|---|
| GC number | J04-496 |
| Barcode / EAN | 87186839830 |
| Commodity code | 8544 42 90 00 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Alternative numbers | 8-718-686-581-0, 2246567 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER GREENSTAR 25SI COMPACT LPG | 47-406-51 | 47-406-51 | — | — |
| WORCESTER GREENSTAR 25SI COMPACT NG | 47-406-50 | 47-406-50 | — | — |
| WORCESTER GREENSTAR 27I COMPACT SYSTEM LPG | 41-406-14 | 41-406-14 | — | — |
| WORCESTER GREENSTAR 27I COMPACT SYSTEM NG | 41-406-13 | 41-406-13 | — | — |
| WORCESTER GREENSTAR 28 CDI COMPACT LPG | 47-406-45 | 47-406-45 | — | — |
| WORCESTER GREENSTAR 28 CDI COMPACT NG | 47-406-44 | 47-406-44 | — | — |
| WORCESTER GREENSTAR 30 SI COMPACT LPG | 47-406-53 | 47-406-53 | — | — |
| WORCESTER GREENSTAR 30 SI COMPACT NG | 47-406-52 | 47-406-52 | — | — |
| WORCESTER GREENSTAR 30I COMPACT SYSTEM LPG | 41-406-16 | 41-406-16 | — | — |
| WORCESTER GREENSTAR 30I COMPACT SYSTEM NG | 41-406-15 | 41-406-15 | — | — |
Showing 10 of 24 compatible appliances.
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
WORCESTER appliance manual — GREENSTAR 25SI COMPACT LPG (GC 47-406-51), GREENSTAR 25SI COMPACT NG (GC 47-406-50), GREENSTAR 30 SI COMPACT LPG (GC 47-406-53), GREENSTAR 30 SI COMPACT NG (GC 47-406-52)
manualmanualWORCESTER appliance manual — GREENSTAR 27I COMPACT SYSTEM LPG (GC 41-406-14), GREENSTAR 27I COMPACT SYSTEM NG (GC 41-406-13), GREENSTAR 30I COMPACT SYSTEM LPG (GC 41-406-16), GREENSTAR 30I COMPACT SYSTEM NG (GC 41-406-15)
manualmanualWORCESTER appliance manual — GREENSTAR 28 CDI COMPACT LPG (GC 47-406-45), GREENSTAR 28 CDI COMPACT NG (GC 47-406-44)
manualmanualWORCESTER appliance manual — GREENSTAR 32CDI COMPACT LPG (GC 47-406-47), GREENSTAR 32CDI COMPACT NG (GC 47-406-46), GREENSTAR 36CDI COMPACT LPG (GC 47-406-49), GREENSTAR 36CDI COMPACT NG (GC 47-406-48)
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